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- Title
Analysis of virtual machine live-migration as a method for power-capping.
- Authors
Jeong, Jinkyu; Kim, Sung-Hun; Kim, Hwanju; Lee, Joonwon; Seo, Euiseong
- Abstract
To reduce the construction cost of the power-supplying infrastructure in data centers and to increase the utilization of the existing one, many researchers have introduced software-based or hardware-based power-capping schemes. In servers with consolidated virtual machines, which can be easily found in cloud systems, exporting virtual machines to other light-loaded servers through live-migration is one of the key approaches to impose power-capping on servers. Up until now, most researchers who have tried to achieve power-capping through live-migration assumed that exporting a virtual machine instantly reduces the server power consumption. However, our analysis introduced in this paper reveals that the power consumption remains high or increases for a few seconds during a migration instance. This behavior contradicts the aim of power-capping, and may endanger the stability of servers. Based on this observation, we also propose and evaluate two power-suppressing live-migration schemes to resolve the power overshooting issue. Our evaluation shows that both approaches immediately limit the power consumption after live-migration is initiated.
- Subjects
VIRTUAL machine systems; INTERNET; SERVER farms (Computer network management); ENERGY consumption; CLOUD computing; CLIENT/SERVER computing
- Publication
Journal of Supercomputing, 2013, Vol 66, Issue 3, p1629
- ISSN
0920-8542
- Publication type
Article
- DOI
10.1007/s11227-013-0956-1